Model Rocketry and Siege Engine Glossary Letter J


Model Rocketry and Siege Engine Glossary Letter J

Glossary
#´s |A |B |C |D |E |F |G |H |I |J |K |L |M |N |O |P |Q |R |S |T |U |V |W |X |Y |Z |

J-Foil
A self-inflating parachute airfoil developed by Domini C. Jalbert. It is very maneuverable and is the current standard airfoil in skydiving parachutes
Jamming
Intentional transmission of r-f energy, in such a way as to interfere with reception of signals by another station
JATO
An auxiliary rocket device for applying thrust to some structure or apparatus
Javelin
See Lawn Dart
Jet
An exhaust stream or rapid flow of fluid from a small opening or nozzle
Jet Deflector
See Blast Deflector
Jet Propulsion
The force, motion or thrust resulting from the ejecting of matter from within the propelled body
JIC
Just In Case: Any precaution taken to avoid trouble, such as sanding residue off igniter clips
Jig
A tool that uses dowel, blocks of wood, clamps and/or forms to allow precise shaping and/or construction of hard to assemble parts, or mass production of commonly used parts such as centering rings


Have something to add? Just send it along.